inet_msg_util.c

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/*****************************************************************************
*  Copyright Statement:
*  --------------------
*  This software is protected by Copyright and the information contained
*  herein is confidential. The software may not be copied and the information
*  contained herein may not be used or disclosed except with the written
*  permission of MediaTek Inc. (C) 2005
*
*  BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
*  THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
*  RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
*  AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
*  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
*  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
*  NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
*  SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
*  SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
*  THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
*  NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
*  SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
*  BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
*  LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
*  AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
*  OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
*  MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE. 
*
*  THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
*  WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
*  LAWS PRINCIPLES.  ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
*  RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
*  THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/

/*****************************************************************************
 *
 * Filename:
 * ---------
 * inet_msg_util.c
 *
 * Project:
 * --------
 *   MAUI
 *
 * Description:
 * ------------
 *   This file contains inet message utility functions.
 *
 * Author:
 * -------
 * -------
 *
 *============================================================================
 *             HISTORY
 * Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *------------------------------------------------------------------------------
 * removed!
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 *------------------------------------------------------------------------------
 * Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
 *============================================================================
 ****************************************************************************/
#ifndef _INET_MSG_UTIL_C
#define _INET_MSG_UTIL_C
#ifdef INET_MSG_LIB_SUPPORT

/***************************************************************************** 
* Include
*****************************************************************************/
#include <stdlib.h>     /* atoi */
#include <ctype.h>      /* toupper */

#include "kal_release.h"
#include "inet_msg_def.h"

#include "inet_msg_struct.h"
#include "inet_msg_mem.h"
#include "inet_msg_util.h"
#include "inet_msg_res.h"
#include "app_md5.h"

//extern const inet_struct_free_fn inet_struct_free_fn_table[inet_struct_num];
//extern const inet_header_pack_fn inet_header_pack_fn_table[INET_HDR_NUM];
/***************************************************************************** 
* Define
*****************************************************************************/

/***************************************************************************** 
* Typedef 
*****************************************************************************/

/***************************************************************************** 
* Local Variable
*****************************************************************************/

/***************************************************************************** 
* Local Function
*****************************************************************************/


/*****************************************************************************
 * FUNCTION
 *  inet_msg_compare_char
 * DESCRIPTION
 *  This function compares two unsigned integers.
 * PARAMETERS
 *  l1      [IN]        First unsigned integer.
 *  l2      [IN]        Second unsigned integer.
 * RETURNS
 *  -1 If l1<l2
 *  1 if l1>l2
 *  0 if l1=l2
 *****************************************************************************/
static kal_int16 inet_msg_compare_char(kal_char l1, kal_char l2)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    if (l1 < l2)
    {
        return -1;
    }
    if (l1 > l2)
    {
        return 1;
    }
    return 0;
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_compare_cstring
 * DESCRIPTION
 *  This function compares two strings.
 * PARAMETERS
 *  s1      [IN]        Pointer to first string
 *  s2      [IN]        Pointer to second string
 * RETURNS
 *  -1 If s1<s2
 *  1 if s1>s2
 *  0 if s1=s2
 *****************************************************************************/
kal_int16 inet_msg_compare_cstring(kal_char *s1, kal_char *s2)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_int16 i;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    if (!s1)
    {
        return s2 ? -1 : 0; /* empty string cases */
    }
    else if (!s2)
    {
        return 1;
    }
    for (; *s1 && *s2; s1++, s2++)
    {
        i = inet_msg_compare_char(
                (kal_char) (islower((kal_int32) * s1) ? toupper((kal_int32) * s1) : *s1),
                (kal_char) (islower((kal_int32) * s2) ? toupper((kal_int32) * s2) : *s2));
        if (i)
        {
            return i;   /* found a difference */
        }
    }
    if (*s1)
    {
        return 1;   /* first string is longer */
    }
    return *s2 ? -1 : 0;    /* second string longer : strings identical */
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_ucase
 * DESCRIPTION
 *  This function converts all Lower case letters into Upper case letters
 * PARAMETERS
 *  s       [IN]        This is the string which is passed and got back as the converted string
 * RETURNS
 *  s                Converted string
 *****************************************************************************/
kal_char *inet_msg_ucase(kal_char *s)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_char *t;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    /* if lowercase convert to upper */
    for (t = s; *t; t++)
    {
        if (!(*t & 0x80) && islower(*t))
        {
            *t = toupper(*t);
        }
    }

    return s;
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_lcase
 * DESCRIPTION
 *  This function converts all Upper case letters into Lower case letters
 * PARAMETERS
 *  s       [IN]        This is the string which is passed and got back as the converted string
 * RETURNS
 *  s                Converted string
 *****************************************************************************/
kal_char *inet_msg_lcase(kal_char *s)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_char *t;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    /* if upper-case convert to lower-case */
    for (t = s; *t; t++)
    {
        if (!(*t & 0x80) && isupper(*t))
        {
            *t = tolower(*t);
        }
    }

    return s;
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_get_token
 * DESCRIPTION
 *  Unquote an RFC822 format string
 * PARAMETERS
 *  src         [IN/OUT]        String pointer
 *  src_len     [IN]            
 *  len         [?]             
 * RETURNS
 *  ret                String pointer(?)
 *****************************************************************************/
void inet_msg_get_token(kal_char *src, kal_uint32 src_len, kal_uint32 *len)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_uint32 l, m;
    kal_char *chk = src;
    kal_char separator[17] = { '(', ')', '<', '>', '@', ',', ';', ':', '\\', '"', '/', '[', ']', '?', '=', '{', '}' };

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    *len = 0;

    while (src_len != 0)
    {
        for (m = 0; m < 17; m++)
        {
            if (*chk == separator[m])
            {
                *len = (chk - src);
                return;
            }
        }
        if ((kal_uint8) * chk <= 32 || (kal_uint8) * chk == 127)
        {
            *len = (chk - src);
            return;
        }
        l++;
        src_len--;
        chk++;
    }
    *len = (chk - src);
    return;
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_skipws
 * DESCRIPTION
 *  
 * PARAMETERS
 *  s       [IN]        
 * RETURNS
 *  void
 *****************************************************************************/
void inet_msg_skipws(kal_char **s)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    int len;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    while (1)
    {
        if (**s == ' ' || **s == '\t')
        {
            ++ * s;
        }
        else
        {
            break;
        }
    }
    len = strlen(*s);
    while (*(*s + len - 1) == ' ' || *(*s + len - 1) == '\t' || len <= 0)
    {
        *(*s + len - 1) = 0x00;
        len--;
    }
}


/*****************************************************************************
 * FUNCTION
 *  inet_msg_mime_quote
 * DESCRIPTION
 *  Unquote an RFC822 format string
 * PARAMETERS
 *  src     [IN/OUT]        String pointer
 * RETURNS
 *  ret                String pointer
 *****************************************************************************/
kal_char *inet_msg_mime_quote(kal_char *src)
{
    /*----------------------------------------------------------------*/
    /* Local Variables                                                */
    /*----------------------------------------------------------------*/
    kal_char *ret = src;

    /*----------------------------------------------------------------*/
    /* Code Body                                                      */
    /*----------------------------------------------------------------*/
    if (strpbrk(src, "\\\""))
    {   /* any quoting in string? */
        kal_char *dst = ret;

        while (*src)
        {   /* copy string */
            if (*src == '\"')
            {
                src++;  /* skip double quote entirely */
            }
            else
            {
                if (*src == '\\')